Question

1.
The cost of a notebook is twice the cost of a pen. Write a linear equation in two
variables to represent this statement.
(Take the cost of a notebook to be Rs x and that of a pen to be Rs y).​

Answer 1

Answer:

let the cost of notebook be Rs x

and pen be Rs y

According to question

2x=y

here is ur answer

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Answer 2

Step-by-step explanation:

let the cost of notebook = x

and the cost of pen = y

A.T.Q

cost notebook = 2 x cost of pen

x = 2y

x - 2y = 0

so, x -2y = 0 is the linear equation in two variable

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